/**
 * ***************************************************************************** Copyright (c) 2005,
 * 2008 IBM Corporation and others. All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0 which accompanies this
 * distribution, and is available at http://www.eclipse.org/legal/epl-v10.html
 *
 * <p>Contributors: IBM Corporation - initial API and implementation
 * *****************************************************************************
 */
package org.eclipse.ltk.internal.core.refactoring.history;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.ltk.core.refactoring.Refactoring;
import org.eclipse.ltk.core.refactoring.RefactoringDescriptor;
import org.eclipse.ltk.core.refactoring.RefactoringStatus;
import org.eclipse.ltk.internal.core.refactoring.RefactoringCoreMessages;

/**
 * Refactoring descriptor to denote the unknown refactoring.
 *
 * @since 3.2
 */
public final class UnknownRefactoringDescriptor extends RefactoringDescriptor {

  /**
   * Creates a new unknown refactoring descriptor.
   *
   * @param name the name of the change, must not be <code>null</code> or empty
   */
  public UnknownRefactoringDescriptor(final String name) {
    super(ID_UNKNOWN, null, name, null, RefactoringDescriptor.NONE);
  }

  /** {@inheritDoc} */
  public Refactoring createRefactoring(final RefactoringStatus status) throws CoreException {
    status.merge(
        RefactoringStatus.createFatalErrorStatus(
            RefactoringCoreMessages.UnknownRefactoringDescriptor_cannot_create_refactoring));
    return null;
  }
}
